BIOS 2210 Lecture 4: Biochemistry
9 Sep 2018
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Propose a hypothesis to explain the observations or predict an outcome. Decide whether to accept or reject the hypothesis. If necessary, propose and test a new hypothesis. Co2 wants to chare its electrons, so is always wanting to bind with other compounds/molecules. Element: matter composed of a single type of atom. Atomic mass: sun of protons and neutrons (the nucleus) Sodium gives up its outer shell electron to chlorine, resulting in sodium and chloride ions. The stable outer shells bring about the attraction of opposite electrical charges. The attraction of the opposite charges is the ionic bond, forming the salt sodium chloride. Nonpolar covalent bond formed by equal sharing of an electron pair (ex: ch4) Polar covalent bonds ** formed by unequal sharing of an electron pair (ex: h2o) A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
